diff --git a/drivers/power/bq27510_battery.c b/drivers/power/bq27510_battery.c deleted file mode 100755 index e53beee6efd4..000000000000 --- a/drivers/power/bq27510_battery.c +++ /dev/null @@ -1,686 +0,0 @@ -/* - * BQ27510 battery driver - * - * This package is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - - -#define DRIVER_VERSION "1.1.0" -#define BQ27x00_REG_TEMP 0x06 -#define BQ27x00_REG_VOLT 0x08 -#define BQ27x00_REG_AI 0x14 -#define BQ27x00_REG_FLAGS 0x0A -#define BQ27x00_REG_TTE 0x16 -#define BQ27x00_REG_TTF 0x18 -#define BQ27x00_REG_TTECP 0x26 -#define BQ27000_REG_RSOC 0x0B /* Relative State-of-Charge */ -#define BQ27500_REG_SOC 0x2c - -#define BQ27500_FLAG_DSC BIT(0) -#define BQ27000_FLAG_CHGS BIT(8) -#define BQ27500_FLAG_FC BIT(9) -#define BQ27500_FLAG_OTD BIT(14) -#define BQ27500_FLAG_OTC BIT(15) - -#define BQ27510_SPEED 300 * 1000 -int virtual_battery_enable = 0; -extern int dwc_vbus_status(void); -static void bq27510_set(void); - -#if 0 -#define DBG(x...) printk(KERN_INFO x) -#else -#define DBG(x...) do { } while (0) -#endif - -/* If the system has several batteries we need a different name for each - * of them... - */ -static DEFINE_MUTEX(battery_mutex); - -struct bq27510_device_info { - struct device *dev; - struct power_supply bat; - struct power_supply ac; - struct delayed_work work; - struct i2c_client *client; - unsigned int interval; - unsigned int dc_check_pin; - unsigned int bat_num; -}; - -static struct bq27510_device_info *bq27510_di; -static enum power_supply_property bq27510_battery_props[] = { - POWER_SUPPLY_PROP_STATUS, - POWER_SUPPLY_PROP_PRESENT, - POWER_SUPPLY_PROP_VOLTAGE_NOW, - POWER_SUPPLY_PROP_CURRENT_NOW, - POWER_SUPPLY_PROP_CAPACITY, - POWER_SUPPLY_PROP_TEMP, - POWER_SUPPLY_PROP_TECHNOLOGY, - POWER_SUPPLY_PROP_HEALTH, - //POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, - //POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, - //POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, -}; - -static enum power_supply_property rk29_ac_props[] = { - POWER_SUPPLY_PROP_ONLINE, -}; - -static ssize_t battery_proc_write(struct file *file,const char __user *buffer, - size_t count, loff_t *ppos) -{ - char c; - int rc; - printk("USER:\n"); - printk("echo x >/proc/driver/power\n"); - printk("x=1,means just print log ||x=2,means log and data ||x= other,means close log\n"); - - rc = get_user(c,buffer); - if(rc) - return rc; - - //added by zwp,c='8' means check whether we need to download firmware to bq27xxx,return 0 means yes. - if(c == '8'){ - printk("%s,bq27510 need to download firmware\n",__FUNCTION__); - } - - if(c == '1') - virtual_battery_enable = 1; - else if(c == '2') - virtual_battery_enable = 2; - else if(c == '3') - virtual_battery_enable = 3; - else if(c == '9'){ - printk("%s:%d>>bq27510 set\n",__FUNCTION__,__LINE__); - bq27510_set(); - } - else - virtual_battery_enable = 0; - printk("%s,count(%d),virtual_battery_enable(%d)\n",__FUNCTION__,(int)count,virtual_battery_enable); - return count; -} - -static const struct file_operations battery_proc_fops = { - .owner = THIS_MODULE, - .write = battery_proc_write, -}; - -/* - * Common code for BQ27510 devices read - */ -static int bq27510_read(struct i2c_client *client, u8 reg, u8 buf[], unsigned len) -{ - int ret; - ret = i2c_master_reg8_recv(client, reg, buf, len, BQ27510_SPEED); - return ret; -} - -static int bq27510_write(struct i2c_client *client, u8 reg, u8 const buf[], unsigned len) -{ - int ret; - ret = i2c_master_reg8_send(client, reg, buf, (int)len, BQ27510_SPEED); - return ret; -} - -/* - * Return the battery temperature in tenths of degree Celsius - * Or < 0 if something fails. - */ -static int bq27510_battery_temperature(struct bq27510_device_info *di) -{ - int ret; - int temp = 0; - u8 buf[2]; - - #if defined (CONFIG_NO_BATTERY_IC) - return 258; - #endif - - if(virtual_battery_enable == 1) - return 125/*258*/; - ret = bq27510_read(di->client,BQ27x00_REG_TEMP,buf,2); - if (ret<0) { - dev_err(di->dev, "error reading temperature\n"); - return ret; - } - temp = get_unaligned_le16(buf); - temp = temp - 2731; - DBG("Enter:%s %d--temp = %d\n",__FUNCTION__,__LINE__,temp); - return temp; -} - -/* - * Return the battery Voltage in milivolts - * Or < 0 if something fails. - */ -static int bq27510_battery_voltage(struct bq27510_device_info *di) -{ - int ret; - u8 buf[2]; - int volt = 0; - - #if defined (CONFIG_NO_BATTERY_IC) - return 4000000; - #endif - if(virtual_battery_enable == 1) - return 2000000/*4000000*/; - - ret = bq27510_read(di->client,BQ27x00_REG_VOLT,buf,2); - if (ret<0) { - dev_err(di->dev, "error reading voltage\n"); - return ret; - } - volt = get_unaligned_le16(buf); - - //bp27510 can only measure one li-lion bat - if(di->bat_num == 2){ - volt = volt * 1000 * 2; - }else{ - volt = volt * 1000; - } - - DBG("Enter:%s %d--volt = %d\n",__FUNCTION__,__LINE__,volt); - return volt; -} - -/* - * Return the battery average current - * Note that current can be negative signed as well - * Or 0 if something fails. - */ -static int bq27510_battery_current(struct bq27510_device_info *di) -{ - int ret; - int curr = 0; - u8 buf[2]; - - #if defined (CONFIG_NO_BATTERY_IC) - return 22000; - #endif - if(virtual_battery_enable == 1) - return 11000/*22000*/; - ret = bq27510_read(di->client,BQ27x00_REG_AI,buf,2); - if (ret<0) { - dev_err(di->dev, "error reading current\n"); - return 0; - } - - curr = get_unaligned_le16(buf); - DBG("curr = %x \n",curr); - if(curr>0x8000){ - curr = 0xFFFF^(curr-1); - } - curr = curr * 1000; - DBG("Enter:%s %d--curr = %d\n",__FUNCTION__,__LINE__,curr); - return curr; -} - -/* - * Return the battery Relative State-of-Charge - * Or < 0 if something fails. - */ -static int bq27510_battery_rsoc(struct bq27510_device_info *di) -{ - int ret; - int rsoc = 0; - #if 0 - int nvcap = 0,facap = 0,remcap=0,fccap=0,full=0,cnt=0; - int art = 0, artte = 0, ai = 0, tte = 0, ttf = 0, si = 0; - int stte = 0, mli = 0, mltte = 0, ae = 0, ap = 0, ttecp = 0, cc = 0; - #endif - u8 buf[2]; - - #if defined (CONFIG_NO_BATTERY_IC) - return 100; - #endif - if(virtual_battery_enable == 1) - return 50/*100*/; - - ret = bq27510_read(di->client,BQ27500_REG_SOC,buf,2); - if (ret<0) { - dev_err(di->dev, "error reading relative State-of-Charge\n"); - return ret; - } - rsoc = get_unaligned_le16(buf); - DBG("Enter:%s %d--rsoc = %d\n",__FUNCTION__,__LINE__,rsoc); - - #if defined (CONFIG_NO_BATTERY_IC) - rsoc = 100; - #endif - #if 0 //other register information, for debug use - ret = bq27510_read(di->client,0x0c,buf,2); //NominalAvailableCapacity - nvcap = get_unaligned_le16(buf); - DBG("\nEnter:%s %d--nvcap = %d\n",__FUNCTION__,__LINE__,nvcap); - ret = bq27510_read(di->client,0x0e,buf,2); //FullAvailableCapacity - facap = get_unaligned_le16(buf); - DBG("Enter:%s %d--facap = %d\n",__FUNCTION__,__LINE__,facap); - ret = bq27510_read(di->client,0x10,buf,2); //RemainingCapacity - remcap = get_unaligned_le16(buf); - DBG("Enter:%s %d--remcap = %d\n",__FUNCTION__,__LINE__,remcap); - ret = bq27510_read(di->client,0x12,buf,2); //FullChargeCapacity - fccap = get_unaligned_le16(buf); - DBG("Enter:%s %d--fccap = %d\n",__FUNCTION__,__LINE__,fccap); - ret = bq27510_read(di->client,0x3c,buf,2); //DesignCapacity - full = get_unaligned_le16(buf); - DBG("Enter:%s %d--DesignCapacity = %d\n",__FUNCTION__,__LINE__,full); - - buf[0] = 0x00; //CONTROL_STATUS - buf[1] = 0x00; - bq27510_write(di->client,0x00,buf,2); - ret = bq27510_read(di->client,0x00,buf,2); - cnt = get_unaligned_le16(buf); - DBG("Enter:%s %d--Control status = %x\n",__FUNCTION__,__LINE__,cnt); - - ret = bq27510_read(di->client,0x02,buf,2); //AtRate - art = get_unaligned_le16(buf); - DBG("Enter:%s %d--AtRate = %d\n",__FUNCTION__,__LINE__,art); - ret = bq27510_read(di->client,0x04,buf,2); //AtRateTimeToEmpty - artte = get_unaligned_le16(buf); - DBG("Enter:%s %d--AtRateTimeToEmpty = %d\n",__FUNCTION__,__LINE__,artte); - ret = bq27510_read(di->client,0x14,buf,2); //AverageCurrent - ai = get_unaligned_le16(buf); - DBG("Enter:%s %d--AverageCurrent = %d\n",__FUNCTION__,__LINE__,ai); - ret = bq27510_read(di->client,0x16,buf,2); //TimeToEmpty - tte = get_unaligned_le16(buf); - DBG("Enter:%s %d--TimeToEmpty = %d\n",__FUNCTION__,__LINE__,tte); - ret = bq27510_read(di->client,0x18,buf,2); //TimeToFull - ttf = get_unaligned_le16(buf); - DBG("Enter:%s %d--TimeToFull = %d\n",__FUNCTION__,__LINE__,ttf); - ret = bq27510_read(di->client,0x1a,buf,2); //StandbyCurrent - si = get_unaligned_le16(buf); - DBG("Enter:%s %d--StandbyCurrent = %d\n",__FUNCTION__,__LINE__,si); - ret = bq27510_read(di->client,0x1c,buf,2); //StandbyTimeToEmpty - stte = get_unaligned_le16(buf); - DBG("Enter:%s %d--StandbyTimeToEmpty = %d\n",__FUNCTION__,__LINE__,stte); - ret = bq27510_read(di->client,0x1e,buf,2); //MaxLoadCurrent - mli = get_unaligned_le16(buf); - DBG("Enter:%s %d--MaxLoadCurrent = %d\n",__FUNCTION__,__LINE__,mli); - ret = bq27510_read(di->client,0x20,buf,2); //MaxLoadTimeToEmpty - mltte = get_unaligned_le16(buf); - DBG("Enter:%s %d--MaxLoadTimeToEmpty = %d\n",__FUNCTION__,__LINE__,mltte); - ret = bq27510_read(di->client,0x22,buf,2); //AvailableEnergy - ae = get_unaligned_le16(buf); - DBG("Enter:%s %d--AvailableEnergy = %d\n",__FUNCTION__,__LINE__,ae); - ret = bq27510_read(di->client,0x24,buf,2); //AveragePower - ap = get_unaligned_le16(buf); - DBG("Enter:%s %d--AveragePower = %d\n",__FUNCTION__,__LINE__,ap); - ret = bq27510_read(di->client,0x26,buf,2); //TTEatConstantPower - ttecp = get_unaligned_le16(buf); - DBG("Enter:%s %d--TTEatConstantPower = %d\n",__FUNCTION__,__LINE__,ttecp); - ret = bq27510_read(di->client,0x2a,buf,2); //CycleCount - cc = get_unaligned_le16(buf); - DBG("Enter:%s %d--CycleCount = %d\n",__FUNCTION__,__LINE__,cc); - #endif - return rsoc; -} - -static int bq27510_battery_status(struct bq27510_device_info *di, - union power_supply_propval *val) -{ - u8 buf[2]; - int flags = 0; - int status; - int ret; - - #if defined (CONFIG_NO_BATTERY_IC) - val->intval = POWER_SUPPLY_STATUS_FULL; - return 0; - #endif - - if(virtual_battery_enable == 1) - { - val->intval = POWER_SUPPLY_STATUS_FULL; - return 0; - } - ret = bq27510_read(di->client,BQ27x00_REG_FLAGS, buf, 2); - if (ret < 0) { - dev_err(di->dev, "error reading flags\n"); - return ret; - } - flags = get_unaligned_le16(buf); - DBG("Enter:%s %d--status = %x\n",__FUNCTION__,__LINE__,flags); - if (flags & BQ27500_FLAG_FC) - status = POWER_SUPPLY_STATUS_FULL; - else if (flags & BQ27500_FLAG_DSC) - status = POWER_SUPPLY_STATUS_DISCHARGING; - else - status = POWER_SUPPLY_STATUS_CHARGING; - - val->intval = status; - return 0; -} - -static int bq27510_health_status(struct bq27510_device_info *di, - union power_supply_propval *val) -{ - u8 buf[2]; - int flags = 0; - int status; - int ret; - - #if defined (CONFIG_NO_BATTERY_IC) - val->intval = POWER_SUPPLY_HEALTH_GOOD; - return 0; - #endif - - if(virtual_battery_enable == 1) - { - val->intval = POWER_SUPPLY_HEALTH_GOOD; - return 0; - } - ret = bq27510_read(di->client,BQ27x00_REG_FLAGS, buf, 2); - if (ret < 0) { - dev_err(di->dev, "error reading flags\n"); - return ret; - } - flags = get_unaligned_le16(buf); - DBG("Enter:%s %d--status = %x\n",__FUNCTION__,__LINE__,flags); - if ((flags & BQ27500_FLAG_OTD)||(flags & BQ27500_FLAG_OTC)) - status = POWER_SUPPLY_HEALTH_OVERHEAT; - else - status = POWER_SUPPLY_HEALTH_GOOD; - - val->intval = status; - return 0; -} - - -/* - * Read a time register. - * Return < 0 if something fails. - */ -static int bq27510_battery_time(struct bq27510_device_info *di, int reg, - union power_supply_propval *val) -{ - u8 buf[2]; - int tval = 0; - int ret; - - ret = bq27510_read(di->client,reg,buf,2); - if (ret<0) { - dev_err(di->dev, "error reading register %02x\n", reg); - return ret; - } - tval = get_unaligned_le16(buf); - DBG("Enter:%s %d--tval=%d\n",__FUNCTION__,__LINE__,tval); - if (tval == 65535) - return -ENODATA; - - val->intval = tval * 60; - DBG("Enter:%s %d val->intval = %d\n",__FUNCTION__,__LINE__,val->intval); - return 0; -} - -#define to_bq27510_device_info(x) container_of((x), \ - struct bq27510_device_info, bat); - -static int bq27510_battery_get_property(struct power_supply *psy, - enum power_supply_property psp, - union power_supply_propval *val) -{ - int ret = 0; - struct bq27510_device_info *di = to_bq27510_device_info(psy); - DBG("Enter:%s %d psp= %d\n",__FUNCTION__,__LINE__,psp); - - switch (psp) { - - case POWER_SUPPLY_PROP_STATUS: - ret = bq27510_battery_status(di, val); - break; - case POWER_SUPPLY_PROP_VOLTAGE_NOW: - case POWER_SUPPLY_PROP_PRESENT: - val->intval = bq27510_battery_voltage(di); - if (psp == POWER_SUPPLY_PROP_PRESENT) - val->intval = val->intval <= 0 ? 0 : 1; - break; - case POWER_SUPPLY_PROP_CURRENT_NOW: - val->intval = bq27510_battery_current(di); - break; - case POWER_SUPPLY_PROP_CAPACITY: - val->intval = bq27510_battery_rsoc(di); - break; - case POWER_SUPPLY_PROP_TEMP: - val->intval = bq27510_battery_temperature(di); - break; - case POWER_SUPPLY_PROP_TECHNOLOGY: - val->intval = POWER_SUPPLY_TECHNOLOGY_LION; - break; - case POWER_SUPPLY_PROP_HEALTH: - ret = bq27510_health_status(di, val); - break; - case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW: - ret = bq27510_battery_time(di, BQ27x00_REG_TTE, val); - break; - case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: - ret = bq27510_battery_time(di, BQ27x00_REG_TTECP, val); - break; - case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW: - ret = bq27510_battery_time(di, BQ27x00_REG_TTF, val); - break; - default: - return -EINVAL; - } - - return ret; -} - -static int rk29_ac_get_property(struct power_supply *psy, - enum power_supply_property psp, - union power_supply_propval *val) -{ - int ret = 0; - struct bq27510_device_info *di = container_of(psy, struct bq27510_device_info, ac); - - switch (psp) { - case POWER_SUPPLY_PROP_ONLINE: - if (psy->type == POWER_SUPPLY_TYPE_MAINS){ - if(gpio_get_value(di->dc_check_pin)) - val->intval = 0; /*discharging*/ - else - val->intval = 1; /*charging*/ - } - DBG("%s:%d val->intval = %d\n",__FUNCTION__,__LINE__,val->intval); - break; - - default: - ret = -EINVAL; - break; - } - return ret; -} - -static void bq27510_powersupply_init(struct bq27510_device_info *di) -{ - di->bat.type = POWER_SUPPLY_TYPE_BATTERY; - di->bat.properties = bq27510_battery_props; - di->bat.num_properties = ARRAY_SIZE(bq27510_battery_props); - di->bat.get_property = bq27510_battery_get_property; - - di->ac.name = "ac"; - di->ac.type = POWER_SUPPLY_TYPE_MAINS; - di->ac.properties = rk29_ac_props; - di->ac.num_properties = ARRAY_SIZE(rk29_ac_props); - di->ac.get_property = rk29_ac_get_property; -} - - -static void bq27510_battery_update_status(struct bq27510_device_info *di) -{ - power_supply_changed(&di->bat); -} - -static void bq27510_battery_work(struct work_struct *work) -{ - struct bq27510_device_info *di = container_of(work, struct bq27510_device_info, work.work); - bq27510_battery_update_status(di); - /* reschedule for the next time */ - schedule_delayed_work(&di->work, di->interval); -} - -static void bq27510_set(void) -{ - struct bq27510_device_info *di; - int i = 0; - u8 buf[2]; - - di = bq27510_di; - printk("enter 0x41\n"); - buf[0] = 0x41; - buf[1] = 0x00; - bq27510_write(di->client,0x00,buf,2); - - msleep(1500); - - printk("enter 0x21\n"); - buf[0] = 0x21; - buf[1] = 0x00; - bq27510_write(di->client,0x00,buf,2); - - buf[0] = 0; - buf[1] = 0; - bq27510_read(di->client,0x00,buf,2); - - // printk("%s: Enter:BUF[0]= 0X%x BUF[1] = 0X%x\n",__FUNCTION__,buf[0],buf[1]); - - while((buf[0] & 0x04)&&(i<5)) - { - printk("enter more 0x21 times i = %d\n",i); - mdelay(1000); - buf[0] = 0x21; - buf[1] = 0x00; - bq27510_write(di->client,0x00,buf,2); - - buf[0] = 0; - buf[1] = 0; - bq27510_read(di->client,0x00,buf,2); - i++; - } - - if(i>5) - printk("write 0x21 error\n"); - else - printk("bq27510 write 0x21 success\n"); -} - -static int bq27510_battery_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct bq27510_device_info *di; - int retval = 0; - struct bq27510_platform_data *pdata; - - pdata = client->dev.platform_data; - - di = kzalloc(sizeof(*di), GFP_KERNEL); - if (!di) { - dev_err(&client->dev, "failed to allocate device info data\n"); - retval = -ENOMEM; - goto batt_failed_2; - } - i2c_set_clientdata(client, di); - di->dev = &client->dev; - di->bat.name = "bq27510-battery"; - di->client = client; - /* 4 seconds between monotor runs interval */ - di->interval = msecs_to_jiffies(4 * 1000); - - di->bat_num = pdata->bat_num; - di->dc_check_pin = pdata->dc_check_pin; - - if (pdata->init_dc_check_pin) - pdata->init_dc_check_pin( ); - - bq27510_powersupply_init(di); - - retval = power_supply_register(&client->dev, &di->bat); - if (retval) { - dev_err(&client->dev, "failed to register battery\n"); - goto batt_failed_4; - } - bq27510_di = di; - retval = power_supply_register(&client->dev, &di->ac); - if (retval) { - dev_err(&client->dev, "failed to register ac\n"); - goto batt_failed_4; - } - INIT_DELAYED_WORK(&di->work, bq27510_battery_work); - schedule_delayed_work(&di->work, di->interval); - dev_info(&client->dev, "support ver. %s enabled\n", DRIVER_VERSION); - return 0; - -batt_failed_4: - kfree(di); -batt_failed_2: - return retval; -} - -static int bq27510_battery_remove(struct i2c_client *client) -{ - struct bq27510_device_info *di = i2c_get_clientdata(client); - - power_supply_unregister(&di->bat); - kfree(di->bat.name); - kfree(di); - return 0; -} - -static const struct i2c_device_id bq27510_id[] = { - { "bq27510", 0 }, -}; - -static struct i2c_driver bq27510_battery_driver = { - .driver = { - .name = "bq27510", - }, - .probe = bq27510_battery_probe, - .remove = bq27510_battery_remove, - .id_table = bq27510_id, -}; - -static int __init bq27510_battery_init(void) -{ - int ret; - struct proc_dir_entry * battery_proc_entry; - - ret = i2c_add_driver(&bq27510_battery_driver); - if (ret) - printk(KERN_ERR "Unable to register BQ27510 driver\n"); - - battery_proc_entry = proc_create("driver/power",0777,NULL,&battery_proc_fops); - return ret; -} -module_init(bq27510_battery_init); - -static void __exit bq27510_battery_exit(void) -{ - i2c_del_driver(&bq27510_battery_driver); -} -module_exit(bq27510_battery_exit); - -MODULE_AUTHOR("Rockchip"); -MODULE_DESCRIPTION("BQ27510 battery monitor driver"); -MODULE_LICENSE("GPL");